iPhone 12: Apple makes jump to 5G
Apple has confirmed its iPhone 12 handsets will be its first to work on faster 5G networks
The company has also extended the range to include a new "Mini" model that has a smaller 5.4in screen.
The US firm bucked a wider industry downturn by increasing its handset sales over the past year.
But some experts say the new features give Apple its best opportunity for growth since 2014, when it revamped its line-up with the iPhone 6.
"5G will bring a new level of performance for downloads and uploads, higher quality video streaming, more responsive gaming, real-time interactivity and so much more," said chief executive Tim Cook.
There has also been a cosmetic refresh this time round, with the sides of the devices getting sharper, flatter edges.
The higher-end iPhone 12 Pro models also get bigger screens than before and a new sensor to help with low-light photography.
image captionLidar sensors are commonly used in self-driving car prototypes, but Apple is using one to help focus photos
However, for the first time none of the devices will be bundled with headphones or a charger. Apple said the move was to help reduce its impact on the environment.
"Tim Cook [has] the stage set for a super-cycle 5G product release," commented Dan Ives, an analyst at Wedbush Securities.
He added that about 40% of the 950 million iPhones in use had not been upgraded in at least three-and-a-half years, presenting a "once-in-a-decade" opportunity.
image captionApple's launch was presented via a pre-filmed video stream
In theory, the Mini could dent Apple's earnings by encouraging the public to buy a product on which it makes a smaller profit than the other phones. But one expert thought that unlikely.
"Apple successfully launched the iPhone SE in April by introducing it at a lower price point without cannibalising sales of the iPhone 11 series," noted Marta Pinto from IDC.
"There are customers out there who want a smaller, cheaper phone, so this is a proven formula that takes into account market trends."
The iPhone is already the bestselling smartphone brand in the UK and the second-most popular in the world in terms of market share.
If forecasts of pent up demand are correct, it could prompt a battle between network operators, as customers become more likely to switch.
"Networks are going to have to offer eye-wateringly attractive deals, and the way they're going to do that is on great tariffs and attractive trade-in deals," predicted Ben Wood from the consultancy CCS Insight.
Apple typically unveils its new iPhones in September, but opted for a later date this year. It has not said why, but it was widely speculated to be related to disruption caused by the coronavirus pandemic.
The firm's shares ended the day 2.7% lower. This has been linked to reports that several Chinese internet platforms opted not to carry the livestream, although it was still widely viewed and commented on via the social media network Sina Weibo.
Apple said the iPhone 12 has the same 6.1in (15.5cm)-sized screen as its predecessor, but it now uses OLED rather than LCD technology for richer colours. This has also helped the firm make the device 11% thinner and have smaller bezels.
It added that the screen was also higher resolution and used a "ceramic shield" to protect its display to offer "four times better drop performance".
A new A14 Bionic chip - the first to be built on a five nanometre process - is being used to carry out more advanced enhancements to photos.
The firm said it would deliver night-mode selfies without using the flash, as well as better deal with colour, contrast and noise in challenging settings.
It showed off a forthcoming mobile version of League of Legends as an example of the "console-quality games" it could now run smoothly.
The addition of a magnet array inside the phone's back will allow compatible chargers to "snap on" and renew the battery more quickly, as well as accessories including a wallet to be held in place.
The iPhone Mini shares these features but in a smaller form.
"The Mini is an interesting move from Apple, which I would have expected [to come] next year - but the smaller phone trend is clearly picking up," commented Carolina Milanesi from Creative Strategies.
The iPhone 12 will start at £799 - a £70 gain on last year - and go on sale on 23 October.
The iPhone 12 Mini will start at £699 and be released on 13 November.